国贸英语翻译帮忙翻译一下:should the buyers be unable to cover insurance

国贸英语翻译
帮忙翻译一下:should the buyers be unable to cover insurance indue time owing to the seller's failure to advise the buyers of the foregoing details by cable, the losses of thus sustained shall be borne by the sellers
should an export license be required in order to ship goods of the contractual description ,it shall be the duty of the seller at his own expense to apply for license and to use due diligence to abtain the grant of such license